Database development project extension created by Visual Studio, a Windows software development IDE; stores the schema of the database and can include SQL source code; used for creating databases for SQL Server, Microsoft's relational database management system (RDBMS) software.
Database development project extension created by Visual Studio, a Windows software development IDE; stores the schema of the database and can include SQL source code; used for creating databases for SQL Server, Microsoft's relational database management system (RDBMS) software.
Older .DBPROJ files can be migrated to the newer SQLPROJ format in Visual Studio 2012.
Information from: http://www.fileinfo.com/extension/sqlproj